US PATENT SUBCLASS 180 / 400
STEERING GEAR

Current as of: June, 1999
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180 /   HD   MOTOR VEHICLES

400STEERING GEAR {8}
401  DF  .~> Steering by terrestrial guide
402  DF  .~> No mechanical connection between steering shaft and steering gear {1}
404  DF  .~> Power assist alarms or disablers
405  DF  .~> With alternate emergency power means (e.g., pump, gearing, etc.) {2}
408  DF  .~> Each wheel steerable {5}
417  DF  .~> With fluid power assist {16}
443  DF  .~> With electric power assist {3}
447  DF  .~> With mechanical power assist {2}

DEFINITION

Classification: 180/400

STEERING GEAR:

(under the class definition) Subject matter comprising means for guiding vehicles involving motor vehicle structure or otherwise limited to motor vehicles as distinguished from drawn vehicles.

(1) Note. The titled phrase "STEERING GEAR" is defined to be a total operating system for guiding a vehicle, and is not meant to solely include or to be limited to the presence of a mechanical element known as a gear.

SEE OR SEARCH THIS CLASS, SUBCLASS:

6.2+, for a motor vehicle which is steered by creating a difference between the driving effort developed by one or more traction elements located on one side of the vehicle and the driving effort developed by one or more traction elements located on the other side thereof; and see especially subclasses 6.24+ for the combination therewith of means (e.g., steerable wheels) for manually steering such a vehicle.

9.38, for a motor vehicle having a special driving device in the nature of an endless, flexible track and having also a ground-engaging wheel for assisting in propelling or supporting the vehicle and further wherein the wheel is adapted to be turned (i.e., pivoted) for steering the vehicle.

9.44+, for a motor vehicle having a special driving device in the nature of an endless, flexible track and having also means for steering the vehicle.

12+, for a motor vehicle having a motor-carrying attachment in the nature of a wheeled frame and wherein the wheels of the frame are driven and steered.

23+, for a motor vehicle having a wheel arrangement comprising five or more wheels and wherein one or more of the wheels are driven and steered; and in particular subclass 24.01 for such a vehicle wherein one of the wheels is positively moved by external means for a vehicle-guiding purpose and another wheel longitudinally spaced from the one wheel is either positively and simultaneously moved for a steering purpose or is mounted to move incident to a turning movement of the vehicle. 37+, for a motor vehicle of the steam traction type having

steering wheels which are driven.

167+, for a motor vehicle having means for controlling its operation responsive to either electromagnetic radiation, magnetic force, or sound waves received from a source, or reflected from an object or a surface, located from the vehicle.

204+, for a motor vehicle having a device for programmably operating the vehicle's steerable wheels.

211+, for a motor vehicle having a wheel arrangement comprising three wheels and wherein at least one of the wheels is driven and steered.

222, for a motor vehicle having a wheel arrangement comprising two wheels in tandem relationship and wherein one of the wheels is driven frictionally and further wherein means is provided for steering that wheel.

223+, for a motor vehicle having a wheel arrangement comprising two wheels in tandem relationship and wherein at least one of the wheels is driven and steered.

234+, for a motor vehicle having four wheels driven and provided with means for steering all of the driven wheels.

252+, for a motor vehicle having at least one wheel which is both driven and steerable.

SEE OR SEARCH CLASS

280, Land Vehicles,

263+, for occupant propelled vehicles including steering, and subclasses 771+ for other land vehicles including occupant steering.